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90-86 Ma (trench and
(Zhang et al., 2010b)
with adakitic affinities, other
ridge intersection)
adakites emplaced nearby
~84 Ma (spreading ridge
(Guan et al., 2010)
subduction)
IP
SE Lhasa Terrane charnockites
T
ACCEPTED MANUSCRIPT
between ~69-43 Ma, with
(Coulon et al., 1986; He et
subaerial andesitic subduction-
a climax ~50 Ma
al., 2003; Lee et al., 2012;
SC
R
Linzizong volcanics erupted as
related magmatism
~52 Ma (flare-up at 50 Ma
then accelerated cooling, then
~42 Ma (slab break-off)
Linzizong andesites formed
earlier east of ~87°E
~75-59 Ma (east)
MA
end of arc magmatism
NU
Linzizong granite intrusion
Zhou et al., 2004)
(He et al., 2007)
(Zhou et al., 2010a)
~60-51 Ma (west)
~60 Ma (slab rollback)
(Lee et al., 2012; Lee et al.,
~50 Ma (slab break-off)
2009)
Yeba mafic-felsic rocks
190-174 Ma (arc on thin/
(Dong et al., 2006; Zhu et
erupted
new continental crust)
al., 2008b)
~180 Ma
(Yin and Grant-Mackie,
D
Evolved rhyolitic flows and
CE
P
TE
ignimbrites (continental melt)
Bivalves in Yeba volcanics
112-71 Ma
(Lee et al., 2009)
Volcanism in Northern Lhasa
~110-80 Ma
(Coulon et al., 1986)
coeval with Takena Formation
~90 Ma (plus a ~52 Ma
(He et al., 2003)
andesitic dyke intrusion
folded dyke)
HP metamorphic belt dividing
~292-242 Ma
(Yang et al., 2009)
Volcanic and plutonic rocks
~143-102 Ma, ~80 Ma,
(Zhao et al., 2008)
respectively emplaced in
with a magmatic flare-up
(Zhu et al., 2009a)
Northern Lhasa
at ~110 Ma)
South Lhasa magmatism (from
135–100 Ma (upwelling
lithospheric delamination),
asthenosphere)
AC
Sangri volcanics erupted
2005)
the Lhasa Terrane east to west
(Zhang et al., 2012a)
170